CONF_THREADS number of threads in the thread-pool used for asynchronous command execution. When this number
of threads is reached, commands remain the queue until threads become available. Sets up a priority queue for the
execution of Commands via a ThreadPool. Sets up a Delayed Queue to handle actions which will be ready for execution
sometime in the future.

checkInterrupts(String lockKey)
check the interrupt map for the existence of an interrupt commands if
exist a List of Interrupt Callable for the same lock key will bereturned,
otherwise it will return null